Https://Www.Typescriptlang.Org/Play/Index.Html?NoImplicitAny=False#Code/MYewdgzgLgBAJgUwGYEMCuAbKB5JSIKwC8MAjAKwBQUAngA4IwDCKUKGIA5gMrAAWCALaMSAb0owYASzgAuGNABOUsJwnwpi+UpVrJIPASjywaQQCMEi9UikYEEAHIph87oQA8O1QD5KAX0pKJDQwYCgpcBhzNDs4ABVFBAQAMRAMREUIAApgBAwMCABKeQBBRUUUGg8WNg4efiEEHxhxSVBIWDpWPggYEjyCiAA6QRQ6bOzRYTY4VhQAGgUQNEU8-YL+Lqn1SThNeRmUObZh-CVhiDoMKShsgHIAenui4dssK2y+Oha+GEIiCR7i8Frtlqs8qDJBsikFJPZYKEpABHAAimgQ4RAygcsnKlWqtXYXF4AmELRIAG0ALpwmBIbEwXLgaCtc5LCArNYIfwwAwwbpQXqbNqSGAdVkGfCEfpM87DeyqIUwAC0ZE2ACp4Mh0FhcNKoHS9po3tiAKIofjZc5bVpgyRSJBMv5ItEYrE4ka2MBwbK3IS2-2CM6afqAjSKIoi+1i13opIeqQOYZ0NAQPg7MVZsUyeT3FAQCAAJnuUOzWfZMazUqMZfLkneDmcrnB3JgAH4YGAEAB3GDuO7YcwAK0xUGGAGsEDQcpyIQgozATL3+4RskU69mNjHAlnt9C6UkoKswDA4+6oNikxAAkA
Такое написание допустимо или можно избежть этого дублирования?
9 и 15